Electrical switch



(No Model.)

J, E. MAYO.

ELECTRICAL SWITCH.

No. 385,815. Patented July 10, 1888.

.(No Model.)

J. E. MAYO.

ELECTRICAL SWITCH.

Patented July 10, 1888.

.lhl m II I. M II 7 l .ml 7 u 7 W isu uou w UNITED JUNIUS ErMAYO, OF NORTH MANCHEdTER, CONNECTICUT.

ELECTRlCAL SWITCH.

SPECIFICATION forming part of Letters Petent No. 385,815, dated'July 10. 1888.

Application filed A pril 27. 1898.

.T 0 all whom it may concern:

Be it known that I. Justus E. MAYO, of North lllanchester, in the county'of Hartford and State of Connecticut, have invented certein new and useful improvements in Electricalswitches, ofwhich the following is a full, clear, and exact description, whereby anyone skilled in the art can make and use the same.

The object of my invention is to provide a snap'switch thatshnll be cheap in constrnotiom' and having out slight frictional resistance to the movement of its parts.

To this end my invention consists in the com bination of the switchbssc, the reciprocating switch-block, d its spring-connected bearing lever.

It further consists in the combination of the switch-base, the reciprocating switch clock and its operating lever, and the cove ith its peculiaiwatch; and it further our in do rails of the several parts of the dcvi 1 their combination, as more particularly hereinafter described, and point-client in the claims.

Figure l is a plan view of my improved switch-block showing the switch on. Fig. 2 is a view of the same side elevation. Fig. 3 is a plan View ofthe some with the switch elf. Fig. 4 is a plan view with the outer cover removed and the inner cover shown in place. Fig. 5 isa view in central vertical section of the switch with both covers on and the parts, as shownin Fig. 1.

In the accompanying draw/lays, the letter a denotes the base of one form of my improved switch; 5, a stud fixed on the switch-base with abearing-suriace slightly above and parallel to the base snd an oblong part rising above the bearing and having pivoted to iis'upper end the lever 0.

Between the lever and the bearing of the stud is arranged a reciprocalingswitchbloclr,

cl, having it central slot, 1., that enables it to be fitted upon the oblong part of the stud, the closed ends of the slot limiiingthe lengthwise movement of the block, lint l'its closelyfupon the stud, on which it has a sliding play. The log d projects from the top of the switch-block near its center, upon opposite sides of the slot d,and isin a position to be engaged by the short arm of the lever 0, except when the letter is at either limit of its swinging movement on its Serial No. 272,0!8. (No model.)

pivot. ()n opposite sides of the switch-block are secured the metallic contact pieces or brushes j, that are made of spring inetaland are secured, as by screws, to the 'opposite sides of the block, the part near the ends projectingontwardns shown in Fig. 1 of the drawings. On opposite sides of this switch-block are arranged other conmct-pieces, y, having' flat bases adapted to be secured to thctop of the base, and upright arms g, that are placed in the path o; vmovement of the projecting parts f of the brushes on the switch-block.

The springs connecting the switch-block (Z and the lever c are of such at length that when. the latter stands upright the block will be in the middle of its ploy; butas soon as the lever is rocked to one side, as toward the right, (see Fig. 1 of the drawings) the short end of the lever thrusts the switch-block towerd'the left and increases the tension upon the spring 6, the movement of the block continuing until the pointof the lever slips off from the log (1, when the tension of the spring throws the 5 block sharply over to the right and brings 7 the several contact-pieces on the right-hand end of the block into contact with those on the base that are connected with the lamp-wires i. and the contact-pieces on the opposite end of the block remaiii in sliding contact with the main wires h. The lanopiv will then be in circnit and will be luminous. By reversing the movement of the lever and swinging it toward the left its lower'end will strike the opposite side of the lug d and force the switchblock over to the right until the end of the' lever slips oil from the log, when the tension of the spring 6 will pull the switch-block quickly end sharply to the left, drewin the contact-pieces on the right ofthe switchlock out of contact with those that are connected with the post and line-wires It on the base. When the con tact is ihusbrolrcn, the lamp 1; will be cutout from the circuit. i

In connection with the above-described de 5 vice I make use of the fusible connectionlgthe opposite ends of this fusible ping being connccled, as by means of screws, to the more rerectory contact-pieces that project from the opposite ends of the switch-block on each side. :00

The hearing parts of the switch-block are protected zrom exposure by scorer, I; of thin g. Y r 385,815

metal, having the slot 1' for the passage of the lsvenhandle, and near the lower edge the several catch-sockets P,that hold the cover against accidental removal when its lower edge is sprung over thevrounded heads of the catches m, that are fixed to the annular capbearing that-rises from thebase.

In addition to-the inner cover having the slot for the passage of the "lever-handle, I provide, also, an outer cover of thin metal spun to shape and provided with similar means for docking it onto the base.

The lever 12, used to operate the switch-block, has a swinging movement ofabout a hundred degrees, and is so arranged that first one side of the lever is npwardand then the other as the'leveris'swnng from one side to the other,

, and on these opposite-sides of the lever are marked the wond's 0n and Off, so that one may see at a glance the location of the switch-block or of the lamp with reference to thecircnil.

. I do not limit myself to the particular construction of the several parts of the switches within described, as they may be modified in form and arral'igementwithontdeparting from my improvement. r i

I claim as my improvement- 1. In combination with theswitclrbase, the reciprocating switch-block having a limited sliding plny,.the lug fixed on the switch-block, the lever pitiotally'con-neeted to thei'stud rising from the base'and having a short arm engaging thesaid lug, the spri-ngseounecting the opposite ends of the switoh block to thelever, and the'several contact-pieces, alls'nbstantially as described;

2. In combination with the switch-base,the reciprocating switch -block' having a limited sliding play, the lug fixed on the switch-block 0 I the lever pivotally connected 'to the stud rising from the base, said. lev' er' having a short arm engaging-the said lug, the springs con-- necting the oppositeends of the switehb1oe'k to the lever, the'several eontact-pieeesborne on the base androd'the sides'-.ef.-the'switoh-- block, respectively, and the removable cap or ooverhaving a slot for the passage of the lever, and' the catch device, whereby-the cover is fast: I v

as described. v g 1 w 3; In combination with the s'wiich ba'se hay i n g the cap -'beari n gs,with.the sevenalcatches m 'ened to the baseo'f the blook'iall-substantially having rounded'heads,theswitchlblock having I 'a limited movement on the switch-basathelever pivotally'connected to thebase-and adapted to'operatethe switeh-block; the several con-- tactrpieces borne on theswitch-block and on the base, respectively, the inner cover'slotted for thepassage of .the .vl ever handle, and'the I outer cover, the several 'eoverslhaving the catch-sockets adapted to engage the rounded heads ofthe cateheswhen the coversaresprun'g over them, all substantially as described.

v JUNIUS E. MAYO.- Witnesses:

WM. B. WALLACE, Esau-us 7/"; fiowi us. 

